/root/anaconda3/envs/covid_cartopy/lib/python3.8/site-packages/pandas/plotting/_matplotlib/core.py:1136: UserWarning: Attempting to set identical left == right == 18680.0 results in singular transformations; automatically expanding.
ax.set_xlim(left, right)
/root/anaconda3/envs/covid_cartopy/lib/python3.8/site-packages/pandas/plotting/_matplotlib/core.py:1136: UserWarning: Attempting to set identical left == right == 18680.0 results in singular transformations; automatically expanding.
ax.set_xlim(left, right)